Adjustable and removable lateral plate for driving-boxes of locomotives.



C. R. DE FO-RE.

ADJUSTABLE AND REMOVABLE LATERAL PLATE FOR DRIVING BOXES OF LOCOMOTIVES.

APPLICATION FH=ED NOV.29. 1915.

Patented Oct. 24, 1916.

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CHARLES R. DE FORE, 015 LOS ANGELES, CALIFORNIA.

ADJUSTABLE AND REMOVABLE LATERAL PLATE FOR DRIVING-BOXES OF LOCOMOTIVES.

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v Specification of Letters Patent.

Patented Oct. 214i, 19116.

Application filed November 29, 1915. Serial No. 63,993.

To all whom it may concern:

Be it known that I, CHARLns R. DE FORE, a citizen of the United States, residing at Los Angeles, in the county of Los'Angeles and State of California, have invented new and useful Improvements in Adjustable and Removable Lateral Plates for Driving-Boxes of Locomotives, of which the following is a specification. Y

My invention relates to improvements in driving boxes of locomotives and in particular to a driving box with an adjustable and removable lateral plate.

The driving boxes of locomotives now commonly in use, whether made of steel lined with brass or made entirely of brass, must be removed when the wear and lost motion between the driving box and the hub of the wheel exceeds a certain amount. The permissible amount of wear is fixed by the Interstate Commerce Commission. The replacement of the worn driving boxes is both laborious and expensive.

It is an object of this invention to construct a driving box in which the bearing surface-of metal can be easily replaced without the necessity of the removal of the driving box. I

My invention consists in the construction of a driving boxhaving a removable lateral plate to which Babbitt metal, providing the bearing surface, is applied. When the Babbitt metal has become worn, this plate can be easily slipped out after removing the wedge, which secures it to the box, and a new plate may be inserted in its place.

With these and other objects in view which will appear as the description proceeds, my invention consists in the construction and arrangement of parts hereinafter described and claimed.

In the accompanying drawings which form a part of this specification, T have illustrated a convenient and practical embodiment of my invention, and in which:

Figure 1 is a perspective view of a driving box to which my invention is applied. Fig. 2 is a top plan view of the same. Fig. 3 is a front view of the same. Fig. 4L is a perspective view of the removable plate, showing the bearing metal removed. Fig. 5 IS a perspective view of the wedge locking the plate to the driving box. Fig. 6 1s a cross section on line 6-6 of Fig. 5.

10 designates a driving box in the recess mounted. The outer face of the driving box is provided with a rectangular recess or slot 12 which extends from the top to near the bottom thereof on both sides of the recess 10. The bottom face of the recess is of greater area than the top thereof,

tapering slot between the edge of the plate and the adjacent beveled side-wall of the recess 12. The angle of inclination of the beveled side of the plate is less than the angle of inclination of the other sides of the plate. The longitudinal slot or socket 18 formed between the edge of the plate and the adjacent side wall of the recess 12 ex tends from the top of the driving box to the lower end of the recess 12. This slot or socket has an open slit 19 between the outer faces of theplate and the driving box.

A wedge member 20, of a size and shape to fit exactly the socket 18, looks the plate securely in position in the recess 12 of the driving box. The cross-section of the wedge (see Fig. 6) is a trapezoid having the front and rear faces parallel, the rear face being wider than the front face. The wedge is provided at its outer end with an apertured head 21. A wedge bolt 22, which is mounted in a T-shaped socket 23 in the driving box, passes through the apertured head 21 of the wedge, and locks the latter in position. A nut lock 24 engages the outer threaded end of the wedge bolt. The outer face of the plate 14: is provided with a circular shallow recess 25. The bottom face of said recess is provided with a series of cup-shaped recesses 26 which serve to anchor the Bab bitt metal. An aperture 27 near the upper side of the plate is provided, which is adapted to receive the end of a punch, or a similar tool, after the wedge has been removed and serves to facilitate the removal of the plate from the driving box. The recess 25 on the plate is filled with Babbitt metal 28 which projects slightly above the face of the plate.

From the foregoing description the operation of my device will be easily understood.

10 of which a locomotive wheel axle ll isagAfter the recess 25 of the plate has been filled with Babbitt metal and the same has been planed down to a suitable thickness, the plate is inserted in the'driving box, the Wedge is put in place and locked by means of the wedge bolt and lock nut. When the Babbitt metal has become worn and needs replacing, the wedge bolt is removed and the plate taken out and a new facing of Babbitt metal is applied to the plate. It is therefore seen that the Babbitt metal facing in the driving box can easily be replaced without the necessity of removal of the driving box. r

I claim:

1. The combination of a driving box for locomotives, said driving box having on its outer face a vertical recess with beveled sides, said recess extending from the top of said box to near the lower end thereof, a removable lateral plate with beveled lateral and bottom sides mounted thereon, said plate being cut away at one vertical side to form with the adjacent side of said first-named recess a wedge-receiving recess tapering toward the lower end thereof, said last-named recess being trapezoidal in cross section and having the front and rear sides parallel with the widest sideat the rear, a wedge shaped to fit said last-named recess, means for looking said wedge in position, and a bearing metal facing on said plate.

2. The combination of a driving box for locomotives having on its outer face a vertical recess with beveled sides, said recess extending from the top of said box to near the lower end thereof, a removable bearing plate with beveled lateral and bottom sides mounted therein, said plate being cut away at one vertical side to form with the adjacent side of said recess a wedge-receiving recess tapering toward the lower end thereof, a

wedge shaped to fit said last-named recess for locking said plate to said box, means for retaining said wedge in position, and a bearing metal facing on said plate.

8. The combination of a driving box for locomotives having on its outer face a vertical recess extending from the top of said box to near the lower end thereof, a removable bea-ring plate forming a dove-tailed joint with said recess mounted therein, said plate forming with a vertical side of said recess a slot tapering toward the lower end thereof, a plate locking wedge mounted in said last-named recess, wedge retaining means, and a bearing metal facing on said plate.

l. The combination of a journal box for locomotives having a lateral bearing face, said face being provided with a vertical recess, a removable lateral plate forming a dove-tailed joint with said recess mounted therein, one of the lateral sides of said plates forming with the adjacent side of said recess a tapering slot, a wedge in said slot locking the said plate to said box, wedge retaining means mounted on said box, and a bearing metal facing on said plate.

5. The combination of a journal bo'x having a lateral bearing face with a recess therein, a removable lateral plate forming a dove-tailed joint with said recess and mounted therein, one of the lateral sides of said plate forming with the adjacent side of said recess a slot, a locking member mounted in said slot for holding said plate in position in relation to said box, means for holding said locking means in position, and a bearing metal facing on said plate.

In testimony whereof I-have signed my name to this specification.

CHARLES R. DE FORE.

copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

